On Wed, Aug 09, 2006 at 09:19:31AM -0400, Tom Laudeman wrote: > Hi, > > I'm running PostgreSQL version 8 on a dual 2.4GHz Xeon with 1GB of RAM > and an IDE hard drive. My big table has around 9 million records. > > Is there a tuning parameter I can change to increase speed of selects? > Clearly, there's already some buffering going on since selecting an > indexed ~50,000 records takes 17 seconds on the first try, and only 0.5 > seconds on the second try (from pgsql). Your OS is probably buffering, 1GB of RAM holds a lot of data. You can try increasing the shared_buffers parameter, but if the delay is getting data from the disk, that won't really help you. Have a nice day, -- Martijn van Oosterhout <kleptog@xxxxxxxxx> http://svana.org/kleptog/ > From each according to his ability. To each according to his ability to litigate.
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